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The 

ADA-7801 

card is available in two models: 

• 

ADA-7801

, a 66

 amplifier card for use in AFR-7800 series audio frames. 

• 

ADA-7801-600

, a 600

 amplifier card for use in AFR-7800 series audio frames. 

See Chapter 3, “

Specifications

” for each model’s performance details. 

Please refer to the specific frame User Manual for ventilation and cooling instructions to maintain 
optimum operating conditions.  The ADA-7801 and ADA-7801-600 cards also fit into Leitch* FR-880 
series frames to provide you with additional installation versatility.  

The ADA-7801 amplifiers are part of a full line of RossGear analog distribution products engineered 
to satisfy the highest quality broadcast standards and the most demanding requirements of your 
facility. 

Functional Block Diagram 

 

Figure 1. Simplified Block Diagram of the ADA-7801 

                                                           
* Leitch is a trademark of Leitch Technology Corporation 

1-2  

  Introduction 

ADA-7801 User Manual (Iss. 08) 

Содержание ADA-7801

Страница 1: ...Ross Video Limited ADA 7801 ADA 7801 600 Audio Distribution Amplifier User Manual Ross Part Number 7801D 004 Issue 08...

Страница 2: ...ng of copyrighted software is prohibited Notice The material in this manual is furnished for informational use only It is subject to change without notice and should not be construed as a commitment b...

Страница 3: ...s Do not use this apparatus near water Hazardous voltages can occur Clean only with a dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions Do not...

Страница 4: ...expense Changes or modifications to this equipment not expressly approved by Ross Video Ltd could void the user s authority to operate this equipment CE This product has been tested and meets the req...

Страница 5: ...Jumper Setup 2 2 Board Installation 2 2 Gain Potentiometer Setup 2 2 Specifications 3 1 In This Chapter 3 1 ADA 7801 Technical Specifications 3 1 ADA 7801 600 Technical Specifications 3 2 Service Info...

Страница 6: ...ii Contents ADA 7801 User Manual Iss 08...

Страница 7: ...quality reliability and functionality Thank you for joining the group of worldwide satisfied Ross Video customers Should you have a question pertaining to the installation or operation of your ADA 780...

Страница 8: ...ntain optimum operating conditions The ADA 7801 and ADA 7801 600 cards also fit into Leitch FR 880 series frames to provide you with additional installation versatility The ADA 7801 amplifiers are par...

Страница 9: ...its Leitch 880 Series frames Interchangeable alternative to the Leitch ADA 881 amplifier Documentation Terms The following terms are used throughout this guide Frame refers to the AFR 7812C or AFR 781...

Страница 10: ...1 4 Introduction ADA 7801 User Manual Iss 08...

Страница 11: ...can cause serious damage to sensitive semiconductor devices Avoid handling circuit boards in high static environments such as carpeted areas and when wearing synthetic fiber clothing Always exercise...

Страница 12: ...anufacturer s manual for specific instructions Please note that heat and power distribution requirements within a frame may dictate specific slot placement of cards Cards with many heat producing comp...

Страница 13: ...tive negative and grounded wires of a balanced analog audio cable Wire the external cables to the removable terminal block connectors as outlined in the figures and procedure below Figure 4 Connector...

Страница 14: ...2 4 Installation and Setup ADA 7801 User Manual Iss 08...

Страница 15: ...ut Level 28dBu Output Impedance 66 Output Output Isolation 70dB S N Ratio 100dB unity gain relative to 8dBu Gain Range 6 to 34dB 6dB fine adjustment Frequency Response 0 02dB 20Hz to 20kHz Total Harmo...

Страница 16: ...atio 100dB unity gain relative to 8dBm Gain Range 6 to 34dB 6dB fine adjustment Frequency Response 0 02dB 20Hz to 20kHz Total Harmonic Distortion Noise 0 009 Intermodulation 0 006 SMPTE Crosstalk betw...

Страница 17: ...eck Check the power indicator LED on the distribution frame front panel for the presence of power If the power LED is not illuminated verify that the power cable is connected to a power source and tha...

Страница 18: ...pertinent information for the safe installation and operation of your RossGear Product Ross Video policy dictates that all repairs to the RossGear ADA 7801 are to be conducted only by an authorized R...

Страница 19: ...12 modules includes 1 power supply AFR 7814C Audio Products Frame and Power Supply PS 7813 1 RU holds 4 modules includes 1 power supply EXT 7200 Extender Board module servicing extension PS 7813 Powe...

Страница 20: ...s Video Incorporated P O Box 880 Ogdensburg New York USA 13669 0880 Visit Us Please visit us at our website for Company information Related products and full product lines On line catalog Trade show i...

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